Exposure
- ID
- GRAVI.2025-03-12T06:19:18.269_1
- Header ID
- GRAVI.2025-03-12T06:19:18.269
- Date updated
- 2025-03-12 06:35:45 UTC+0000
- Release date
- 2026-03-12 06:35:44 UTC+0000
- UTC Start
- 2025-03-12 06:19:18.269
- UTC End
- 2025-03-12 06:25:58.269
- MJD Start
- 60746.26340589
- MJD End
- 60746.26803551963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.012641
- Ambient temperature (°C)
- 14.36
- Seeing (arcsec)
- 0.43
Observation
- ID
- 65030
- Category
- science
- Program ID
- 114.278L.001
- Program Title
- CONJUNCTIONS OF ALPHA CENTAURI: GRAVITY ASTROMETRY OF THE B-S4 EVENT AND CRIRES CHARACTERIZATION OF SOURCE S5
- Program Type
- Normal
- PI / COI
- KERVELLA / MÉRAND / LACOUR / FORVEILLE / ARENOU / THEVENIN / BOURDAROT / BRANDNER / STRAUBMEIER / GARCIA / WOILLEZ / EISENHAUER / PAUMARD / ROUSSELET-PERRAUT / PERRIN
Target
- ID
- 48420
- Name
- StarS4
- RA
- 219.843319
- DEC
- -60.82896
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 19.9640 | 20.1620 | 118.8000 | 120.0000 |
| A0-D0 | 32.0040 | 32.0020 | 52.5000 | 54.0000 |
| A0-C1 | 20.1100 | 20.2600 | 89.7820 | 91.2970 |
| B2-D0 | 30.1760 | 30.1140 | 15.2000 | 16.3000 |
| B2-C1 | 10.0500 | 10.0290 | 15.1170 | 16.2150 |
| D0-C1 | 20.1260 | 20.0850 | 195.1780 | 196.2770 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 114.278L.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60746.26340589 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843319 |
| DEC | -60.82896 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | SPLIT |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | A0 |
| HIERARCH ESO ISS CONF STATION2 | B2 |
| HIERARCH ESO ISS CONF STATION3 | D0 |
| HIERARCH ESO ISS CONF STATION4 | C1 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 19.964 |
| HIERARCH ESO ISS PBL12 END | 20.162 |
| HIERARCH ESO ISS PBLA12 START | 118.8 |
| HIERARCH ESO ISS PBLA12 END | 120.0 |
| HIERARCH ESO ISS PBL13 START | 32.004 |
| HIERARCH ESO ISS PBL13 END | 32.002 |
| HIERARCH ESO ISS PBLA13 START | 52.5 |
| HIERARCH ESO ISS PBLA13 END | 54.0 |
| HIERARCH ESO ISS PBL14 START | 20.11 |
| HIERARCH ESO ISS PBL14 END | 20.26 |
| HIERARCH ESO ISS PBLA14 START | 89.782 |
| HIERARCH ESO ISS PBLA14 END | 91.297 |
| HIERARCH ESO ISS PBL23 START | 30.176 |
| HIERARCH ESO ISS PBL23 END | 30.114 |
| HIERARCH ESO ISS PBLA23 START | 15.2 |
| HIERARCH ESO ISS PBLA23 END | 16.3 |
| HIERARCH ESO ISS PBL24 START | 10.05 |
| HIERARCH ESO ISS PBL24 END | 10.029 |
| HIERARCH ESO ISS PBLA24 START | 15.117 |
| HIERARCH ESO ISS PBLA24 END | 16.215 |
| HIERARCH ESO ISS PBL34 START | 20.126 |
| HIERARCH ESO ISS PBL34 END | 20.085 |
| HIERARCH ESO ISS PBLA34 START | 195.178 |
| HIERARCH ESO ISS PBLA34 END | 196.277 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.012189 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.013093 |
| HIERARCH ESO ISS AMBI TEMP | 14.36 |
| HIERARCH ESO ISS AMBI FWHM START | 0.45 |
| HIERARCH ESO ISS AMBI FWHM END | 0.41 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.496 |
| HIERARCH ESO FT ROBJ DELTA | -604945.609 |